Hoshi ni Negai wo: Fantastic Cat

Lilly lives in Planet Magracia, a commercial hub with frequent space traffic. Her school is the center of her social life, but that changes with the arrival of Hikari, a new student who's about Lilly's age but seems much more mature. Hikari keeps to herself, which makes it hard for Lilly to get to know her. The situation shifts when a mysterious creature that resembles a cat appears in their class.